He said that while he worked for the Secret Service during President Clinton's term, he "found Mrs. Clinton to be the most deceptive human being [and] manipulative political person in a position of power I'd ever met."

"It wasn't so much that she was a liar - she deceived and manipulated with such ease," he said, objecting to Democratic strategist Robin Biro's account of Clinton being a warm person to be around.

"Mrs. Clinton is a fraud," Bongino, also a former Republican congressional candidate in the Maryland panhandle, said.

"I lost a tough [election] in Maryland," he said, adding that, despite the thin margin of loss, he had to "move on."

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